Time to disapate Heat from a Glass Sheet to Air

[JJCAB]

Urgent Help Required!

I need to calculate the rate of heat emission from 30 newly formed mirrors 300 mm x 50 mm each. Basically they leave an oven and are at a temperature of 70 Degrees. It then enters a space at 19 degrees. I have a batch of 30 every two minute with a max of ten batches in the room at any one time. So in order to work out my heat load i need to know the temperature of each batch every two minutes until they've reached room temp.

Any ideas?

 

[trashcanman]

That is a very cool oven if they leave @ 70 DEG.F. Should that be 700 Deg F?
At 30/2min, that is 15 mirrows/min. Find out the mass of each (lb.), work out the heat content (specific heat of material), use room temp as base. Determine BTU lost/mirrow to cool to room temp. At 15 mirrow/min X heat loss/mirrow = BTUH/Min.